SDSS J142447.13+262917.1

All names: SDSS J142447.14+262916.8, SDSS J142447.13+262917.0, Gaia EDR3 1256440833600170112, SDSS J142447.13+262917.1, PB 3615, Gaia DR2 1256440833600170112, Gaia DR3 1256440833600170112

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 24 47.14 (0.1) 14 24 47.13 14 24 47.14 (0.2) 14 24 47.14 14 24 47.13 (0.1) 14 24 47.13
Declination 26 29 16.76 (0.1) 26 29 17.09 26 29 16.77 (0.2) 26 29 16.76 26 29 17.29 (0.1) 26 29 17.11
Spectral type DB DB DBH DBH:M DB
Effective temperature [K] 18364.0 28046.0 (487) 26049.0 (3994) 24742.0 (668)
log(g) [cgs] 8.15 7.69 (0.07) 8.20 (0.1) 7.92 (0.07)
Mass [M] 0.684 0.728 (0.09)
log(Luminosity) [L]
Cooling age [Gyr] 0.1356
log(H/He) <-2.91
log(C/He)
log(Ca/He) <-4.0
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 2.55 (0.2) 2.87 (0.2) 2.55 2.55 (0.2)
Distance [pc] 392.51 (28) 349.01 (30) 615.00 392.51 392.51 (28)
Composition He
Proper motion (right ascension) [mas/yr] 3.273178912 (0.2) 4.607839732 (0.5) 3.273 (0.2)
Proper motion (declination) [mas/yr] -33.56399083 (0.2) -32.00980635 (0.5) -33.564 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.50
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.43 (0.02) 18.43 (0.02) 18.46 (0.03)
g magnitude 18.56 (0.007) 18.56 (0.007) 18.58 (0.01)
r magnitude 18.94 (0.01) 18.94 (0.01) 18.94 (0.02)
i magnitude 19.29 (0.02) 19.29 (0.02) 19.28 (0.02)
z magnitude 19.63 (0.09) 19.63 (0.09) 19.58 (0.09)
G magnitude 18.73 (0.02) 18.77 18.73 18.73 (0.004)
BP magnitude 18.66 (0.02) 18.58
RP magnitude 19.04 (0.03) 18.97
Pan g magnitude 18.62 (0.008)
Pan r magnitude 18.92 (0.01)
Pan i magnitude 19.23 (0.005)
Pan z magnitude 19.45 (0.01)
Pan y magnitude 19.58 (0.08)
E(B-V) 0.020

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.